KR101194980B1 - Coffee machine with load cell - Google Patents

Coffee machine with load cell Download PDF

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Publication number
KR101194980B1
KR101194980B1 KR1020120039372A KR20120039372A KR101194980B1 KR 101194980 B1 KR101194980 B1 KR 101194980B1 KR 1020120039372 A KR1020120039372 A KR 1020120039372A KR 20120039372 A KR20120039372 A KR 20120039372A KR 101194980 B1 KR101194980 B1 KR 101194980B1
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South Korea
Prior art keywords
coffee
cold water
load cell
hot water
line
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KR1020120039372A
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Korean (ko)
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김서헌
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김서헌
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Priority to KR1020120039372A priority Critical patent/KR101194980B1/en
Application granted granted Critical
Publication of KR101194980B1 publication Critical patent/KR101194980B1/en
Priority to PCT/KR2013/002364 priority patent/WO2013157751A1/en
Priority to CN201380019513.0A priority patent/CN104768434A/en
Priority to US14/388,124 priority patent/US20150059585A1/en
Priority to EP13777695.1A priority patent/EP2839765A4/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/40—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/54—Water boiling vessels in beverage making machines
    • A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/40—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
    • A47J31/407—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea with ingredient-containing cartridges; Cartridge-perforating means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A47J31/441—Warming devices or supports for beverage containers
    • A47J31/4425—Supports for beverage containers when filled or while being filled
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
    • A47J31/469—Details of hydraulic circuits
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
    • A47J31/525—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus the electronic control being based on monitoring of specific process parameters
    • A47J31/5253—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus the electronic control being based on monitoring of specific process parameters of temperature
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
    • A47J31/525—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus the electronic control being based on monitoring of specific process parameters
    • A47J31/5255—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus the electronic control being based on monitoring of specific process parameters of flow rate
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
    • A47J2043/0733—Weighing means

Abstract

PURPOSE: A coffee machine including a load cell is provided to control the extraction rate of coffee by accurately sensing the weight of the extracted coffee using the load cell. CONSTITUTION: A pump(20) is connected to a tank(10). A heating container(30) heats cold water provided through a cold water line(L1). A capsule holder(40) includes a coffee extractor(42). A load cell(60) is installed at the lower part of a coffee cup supporter(50). A control module(70) controls the amount of coffee extracted by the coffee extractor according to the electric signal of the load cell.

Description

로드셀이 구비된 커피머신{COFFEE MACHINE WITH LOAD CELL}Coffee Machine with Load Cell {COFFEE MACHINE WITH LOAD CELL}

본 발명은 로드셀이 구비된 커피머신에 관한 것으로, 더욱 상세하게는 커피잔으로 추출되는 커피의 양을 제어할 수 있는 로드셀이 구비된 커피머신에 관한 것이다.
The present invention relates to a coffee machine provided with a load cell, and more particularly, to a coffee machine provided with a load cell that can control the amount of coffee extracted into the coffee cup.

일반적으로 커피머신은 일련의 공정을 거쳐 커피를 간편하고 신속하게 추출할 수 있는 장치로서, 커피가 대중화됨에 따라 그 보급이 점점 확산되고 있는 추세이다.In general, the coffee machine is a device that can be easily and quickly to extract the coffee through a series of processes, the spread of the coffee as the coffee is popularized.

이에 보조하여 커피머신의 기능성을 향상시키기 위한 연구 개발이 꾸준히 진행되고 있다.In support of this, research and development for improving the functionality of the coffee machine are steadily progressing.

종래의 커피머신은 공개특허공보 제10-2010-0063069호에 개시되어 있다. 이러한 커피머신은 도 1에 도시되어 있는 바와 같이, 물탱크(1); 물탱크(1)에 저장된 물을 펌핑하는 전기펌프(2); 전기펌프(2)에서 펌핑되는 물을 가열하는 히터(3); 히터(3)에서 가열된 물로 커피캡슐(4a)에 충전된 커피분말을 용융시켜 배출하는 캡슐홀더(4); 전기펌프(2)와 히터(3) 사이에 설치되는 유량센서(5); 히터(3)의 후방에 설치되어, 물의 온도를 검출하는 온도센서(6) 및 각 구성을 제어하는 제어회로(7)로 이루어진다.Conventional coffee machines are disclosed in Korean Patent Laid-Open Publication No. 10-2010-0063069. This coffee machine, as shown in Figure 1, the water tank (1); An electric pump 2 for pumping water stored in the water tank 1; A heater 3 for heating the water pumped from the electric pump 2; A capsule holder 4 for melting and discharging the coffee powder filled in the coffee capsule 4a with water heated by the heater 3; A flow rate sensor 5 installed between the electric pump 2 and the heater 3; It is provided in the rear of the heater 3, and consists of the temperature sensor 6 which detects the temperature of water, and the control circuit 7 which controls each structure.

특히, 유량센서(5)는 물탱크(1)로부터 공급되는 물의 유량을 검출하여 커피의 추출량을 제어하기 위하여 설치된다.In particular, the flow sensor 5 is installed to detect the flow rate of the water supplied from the water tank 1 to control the extraction amount of coffee.

그러나 위와 같은 커피머신은 유량센서(5) 및 제어회로(7)를 통해 일정량의 물을 공급하더라도 물이 히터(3) 및 캡슐홀더(4)를 통과하는 과정에서 상태변화 등이 발생됨으로써 최종적으로 커피잔(C)에 추출되는 커피의 양이 매번 조금씩 달라진다.However, in the coffee machine as described above, even if a certain amount of water is supplied through the flow sensor 5 and the control circuit 7, a state change occurs in the process of passing the water through the heater 3 and the capsule holder 4. The amount of coffee extracted into the coffee cup (C) is slightly different each time.

따라서 커피머신 사용자에게 항상 균일한 맛과 향의 커피를 제공할 수 없다는 문제점이 있다. Therefore, there is a problem in that it is not always possible to provide coffee machine users with a uniform taste and aroma.

한편, 유량센서(5)를 히터(3)의 후방에 설치할 경우 캡슐의 상태에 따른 추출량의 변화를 측정하지 못하게 되고, 가열된 물의 온도 및 압력으로 인해 유량센서(5)의 수명이 단축될 수 있으며, 또한 유량센서(5)를 캡슐홀더(4)의 후방에 설치할 경우에는 추출시 발생되는 미세량의 커피가루 등 주변환경에 의해 유량센서(3)가 손상되거나 오작동이 발생될 가능성이 있다.
On the other hand, when the flow sensor 5 is installed in the rear of the heater 3, it is not possible to measure the change in the extraction amount according to the state of the capsule, the life of the flow sensor 5 may be shortened due to the temperature and pressure of the heated water. In addition, when the flow sensor 5 is installed at the rear of the capsule holder 4, there is a possibility that the flow sensor 3 may be damaged or a malfunction may occur due to the surrounding environment such as a small amount of coffee powder generated during extraction.

본 발명은 위와 같은 문제점을 해결하기 위하여 안출된 것으로, 본 발명에서 해결하고자 하는 과제는 커피를 정량으로 정확하게 추출할 수 있는 로드셀이 구비된 커피머신을 제공하는 것이다.
The present invention has been made to solve the above problems, the problem to be solved in the present invention is to provide a coffee machine equipped with a load cell that can accurately extract the coffee quantitatively.

위와 같은 과제를 해결하기 위한 본 발명에 따른 로드셀이 구비된 커피머신은 탱크; 상기 탱크와 연결되는 펌프; 상기 펌프와 연결되는 냉수라인; 상기 냉수라인과 연결되어, 상기 냉수라인을 통해 공급되는 냉수를 가열하는 히팅컨테이너; 상기 히팅컨테이너와 연결되는 온수라인; 상기 온수라인과 연결되며, 커피추출구가 구비되어 있는 캡슐홀더; 상기 커피추출구의 하부에 설치되는 커피잔받침대; 상기 커피잔받침대의 하부에 설치되는 로드셀 및 상기 로드셀에서 출력되는 전기적 신호에 따라 상기 커피추출구를 통해 추출되는 커피의 양을 제어하는 제어모듈을 포함하여 구성되는 것을 기술적 특징으로 한다.
Coffee machine equipped with a load cell according to the present invention for solving the above problems is a tank; A pump connected with the tank; A cold water line connected to the pump; A heating container connected to the cold water line to heat cold water supplied through the cold water line; A hot water line connected to the heating container; A capsule holder connected to the hot water line and having a coffee extraction port; A coffee cup support installed at a lower portion of the coffee extraction port; It is characterized in that it comprises a control module for controlling the amount of coffee to be extracted through the coffee extraction port in accordance with the load cell installed in the lower portion of the coffee cup support and the electrical signal output from the load cell.

본 발명에 따른 로드셀이 구비된 커피머신은 로드셀을 통해 커피잔으로 추출되는 커피의 무게를 정확하게 감지하여 그 추출량을 제어함으로써 커피를 항상 정량으로 추출할 수 있다. 그로 인해, 커피머신 사용자에게 항상 균일한 맛과 향을 지닌 커피를 제공할 수 있다.Coffee machine equipped with a load cell according to the present invention can accurately detect the weight of the coffee extracted into the coffee cup through the load cell to control the amount of extraction can always extract coffee in a quantitative manner. Thereby, it is possible to always provide coffee machine users with coffee with a uniform taste and aroma.

그리고 로드셀이 외부에 노출되어 있는 커피잔받침대의 하부에 설치되어 유지보수가 상대적으로 용이하다.
And the load cell is installed in the lower portion of the coffee cup support exposed to the outside, the maintenance is relatively easy.

도 1은 종래 커피머신의 구성도
도 2는 본 발명에 따른 로드셀이 구비된 커피머신의 제1 실시형태를 도시한 구성도
도 3은 본 발명에 따른 로드셀이 구비된 커피머신의 제2 실시형태를 도시한 구성도1 is a block diagram of a conventional coffee machine
Figure 2 is a block diagram showing a first embodiment of a coffee machine equipped with a load cell according to the present invention
Figure 3 is a block diagram showing a second embodiment of a coffee machine equipped with a load cell according to the present invention

아래에서는 본 발명에 따른 로드셀이 구비된 커피머신을 첨부된 도면을 통해 더욱 상세히 설명한다.
Hereinafter, a coffee machine equipped with a load cell according to the present invention will be described in more detail with reference to the accompanying drawings.

본 발명은 로드셀이 구비된 커피머신에 관한 것으로, 도 2는 본 발명에 따른 로드셀이 구비된 커피머신의 제1 실시형태를 도시한 구성도이다.The present invention relates to a coffee machine with a load cell, Figure 2 is a block diagram showing a first embodiment of a coffee machine with a load cell according to the present invention.

본 발명에 따른 로드셀이 구비된 커피머신은 탱크(10); 탱크(10)와 연결되는 펌프(20); 펌프(20)와 연결되는 냉수라인(L1); 냉수라인(L1)과 연결되는 히팅컨테이너(30); 히팅컨테이너(30)와 연결되는 온수라인(L2); 온수라인(L2)과 연결되는 캡슐홀더(40); 캡슐홀더(40)의 하부에 설치되는 커피잔받침대(50); 커피잔받침대(50)의 하부에 설치되는 로드셀(60) 및 로드셀(60)과 전기적으로 연결되는 제어모듈(70)로 구성된다.
Coffee machine equipped with a load cell according to the invention the tank (10); A pump 20 connected with the tank 10; Cold water line (L1) connected to the pump 20; Heating container 30 is connected to the cold water line (L1); A hot water line L2 connected to the heating container 30; Capsule holder 40 connected to the hot water line (L2); A coffee cup supporter 50 installed below the capsule holder 40; It consists of a load cell 60 and a control module 70 electrically connected to the load cell 60 is installed in the lower portion of the coffee cup support (50).

탱크(10)는 그 내부에 냉수가 저장되며, 외부로부터 냉수가 공급되는 파이프라인으로 대체될 수 있다. 특히 탱크(10)가 파이프라인으로 대체되는 경우에는 파이프라인 상에 냉수를 정화할 수 있는 필터수단이 구비되는 것이 바람직하다.The tank 10 may be replaced with a pipeline in which cold water is stored and supplied with cold water from the outside. In particular, when the tank 10 is replaced by a pipeline, it is preferable that a filter means for purifying cold water on the pipeline is provided.

펌프(20)는 펌핑동작에 의해 탱크(10)에 저장되어 있는 냉수를 냉수라인(L1)으로 고압 이송시키는 역할을 하며, 이러한 펌프(20)로는 공지된 다양한 종류의 것을 선택적으로 적용할 수 있다.The pump 20 serves to transfer the high pressure cold water stored in the tank 10 to the cold water line L1 by a pumping operation, and the pump 20 may selectively apply various types of known materials. .

한편, 펌프(20)와 탱크(10) 사이에는 물의 배출을 제어하는 제어밸브(도시되지 않음)가 구비될 수 있다.On the other hand, between the pump 20 and the tank 10 may be provided with a control valve (not shown) for controlling the discharge of water.

냉수라인(L1)은 탱크(10)에서 배출되는 냉수를 히팅컨테이너(30)로 공급하기 위한 것으로, 파이프 형상을 가지고 펌프(20)와 히팅컨테이너(30) 사이에 긴밀하게 설치된다.Cold water line (L1) is for supplying the cold water discharged from the tank 10 to the heating container 30, has a pipe shape is closely installed between the pump 20 and the heating container (30).

히팅컨테이너(30)는 냉수라인(L1)을 통해 공급되는 냉수를 가열하기 위한 것으로, 그 내부에 히터(32)가 구비된다. 히팅컨테이너(30)의 형상 및 히터(32)의 종류는 냉수를 원활하게 가열할 수 있는 범위 내에서 적절하게 변경 가능하다.The heating container 30 is for heating the cold water supplied through the cold water line (L1), the heater 32 is provided therein. The shape of the heating container 30 and the kind of the heater 32 can be appropriately changed within a range capable of smoothly heating cold water.

온수라인(L2)은 히팅컨테이너(30)에서 가열된 온수를 캡슐홀더(40)로 공급하기 위한 것으로, 파이프 형상을 가지고 히팅컨테이너(30)와 캡슐홀더(40) 사이에 설치된다.The hot water line L2 is for supplying hot water heated in the heating container 30 to the capsule holder 40. The hot water line L2 has a pipe shape and is installed between the heating container 30 and the capsule holder 40.

캡슐홀더(40)는 그 내부에 커피분말 형태의 커피캡슐(44)이 수용되며, 그 바닥면에는 온수라인(L2)을 통해 공급되는 온수가 커피캡슐(44)로 제공되면서 생성되는 커피를 커피잔(C)으로 추출하기 위한 커피추출구(42)가 구비되어 있다. 커피추출구(42)는 캡슐홀더(40)에 일체로 형성되거나, 별도의 구성으로 캡슐홀더(40)에 결합시킬 수도 있다.The capsule holder 40 accommodates coffee capsules 44 in the form of coffee powder therein, and the bottom surface of the coffee produced while the hot water supplied through the hot water line L2 is provided to the coffee capsules 44. Coffee extraction port 42 for extracting the cup (C) is provided. Coffee extraction port 42 may be integrally formed in the capsule holder 40, or may be coupled to the capsule holder 40 in a separate configuration.

그리고 캡슐홀더(40)에는 커피캡슐(44)로 온수를 제공함과 아울러 제조된 커피를 커피캡슐(44)로부터 추출할 수 있도록 커피캡슐(44)과 연통되는 연통수단(도시되지 않음)이 구비되어 있다.And the capsule holder 40 is provided with a communication means (not shown) in communication with the coffee capsule 44 to provide hot water to the coffee capsule 44 and to extract the produced coffee from the coffee capsule 44 have.

한편, 커피캡슐(44)은 다양한 종류의 것을 선택적으로 적용할 수 있음은 물론이다.On the other hand, the coffee capsule 44 can be applied to various kinds of selectively.

커피잔받침대(50)는 커피잔(C)이 놓이는 장소로서, 캡슐홀더(40)의 커피추출구(42) 하부에 이격 설치된다.The coffee cup supporter 50 is a place where the coffee cup C is placed and is spaced apart from the coffee extraction port 42 of the capsule holder 40.

로드셀(60)은 커피잔(C)에 추출되는 커피의 무게를 감지하여 그 추출량을 제어함으로써 커피를 항상 정량으로 정확하게 추출하기 위한 것으로, 캡슐홀더(40)의 커피추출구(42)를 통해 배출되는 커피의 무게에 따라 제어모듈(70)로 전기적 신호를 출력시킨다.The load cell 60 detects the weight of the coffee to be extracted into the coffee cup C and controls the extraction amount so that the coffee is always quantitatively and accurately extracted, and discharged through the coffee extraction port 42 of the capsule holder 40. Outputs an electrical signal to the control module 70 according to the weight of the coffee.

이러한 로드셀(60)은 커피잔받침대(50)의 하부 중앙에 설치됨으로써 커피 추출량에 대한 신뢰도를 한층 강화시킬 있으며, 또한 외부에 노출되어 있어 유지보수가 용이하다.The load cell 60 is installed in the lower center of the coffee cup support 50 to further enhance the reliability of the coffee extraction amount, and is also exposed to the outside, so that maintenance is easy.

그리고 로드셀(60)은 유동이나 이탈을 방지하기 위하여 커피잔받침대(50)의 하부면에 일체로 결합되거나, 커피잔받침대(50)의 하부면에 일체로 형성되는 것이 바람직하다.And the load cell 60 is preferably integrally coupled to the lower surface of the coffee cup support 50, or integrally formed on the lower surface of the coffee cup support 50 to prevent flow or separation.

한편, 로드셀(60)은 하중을 가하면 그 크기에 비례하여 전기적 출력이 발생되는 힘 변환기의 총칭으로, 로드셀(60)의 원리는 스트레인 게이지(Strain gage)를 금속 탄성체에 점착하고 그 탄성체에 하중(무게)을 가했을 때 발생되는 탄성체의 스트레인 게이지 저항값의 변화로서 가해진 하중의 크기에 비례하는 전기적 신호를 얻는 것이다.On the other hand, the load cell 60 is a general term of the force transducer that generates an electrical output in proportion to the size of the load, the principle of the load cell 60 is a strain gage (Strain gage) attached to the metal elastic body and the load ( Weight) to obtain an electrical signal that is proportional to the magnitude of the applied load as a change in the strain gauge resistance value of the elastic body.

위에서 설명한 로드셀(60)은 공지된 기술이므로 그 구체적인 구성 및 작동원리에 대한 설명은 생략하기로 한다.Since the load cell 60 described above is a known technique, a description of the specific configuration and operation principle will be omitted.

제어모듈(70)은 사용자가 입력하는 제어신호에 따라 커피가 추출되도록 제어하는 것이다. 특히 제어모듈(70)은 로드셀(60)에서 출력되는 전기적 신호에 따라 캡슐홀더(40)의 커피추출구(42)를 통해 추출되는 커피의 양을 제어하는 역할을 수행한다. The control module 70 controls the coffee to be extracted according to the control signal input by the user. In particular, the control module 70 controls the amount of coffee extracted through the coffee extraction port 42 of the capsule holder 40 in accordance with the electrical signal output from the load cell 60.

이때, 로드셀(60)에서 출력되는 전기적 신호는 커피 무게에 비례하여 출력의 크기가 변화되므로 제어모듈(70)에는 로드셀(60)에서 출력되는 전기적 신호를 무게로 환산한 데이터 테이블 및 전기적 신호에 따라 구동의 순서를 제어하는 데이터 로직 등이 구비된다. 또한 커피잔받침대(50)에 놓여지는 커피잔(C)은 그 종류에 따라 무게가 다를 수 있으므로 커피잔(C)의 무게에 따른 전기적 신호와 배출되는 커피 무게에 따른 전기적 신호의 차이를 계산하여 추출되는 커피의 양을 제어하도록 구성될 수 있다.
At this time, the electrical signal output from the load cell 60 changes in size in proportion to the coffee weight, so that the control module 70 according to the data table and the electrical signal converted into the weight of the electrical signal output from the load cell 60 And data logic for controlling the order of driving. In addition, since the weight of the coffee cup (C) placed on the coffee cup support 50 may be different depending on the type, the difference between the electrical signal according to the weight of the coffee cup (C) and the electrical signal according to the discharged coffee weight is calculated. It may be configured to control the amount of coffee to be extracted.

도 3은 본 발명에 따른 로드셀이 구비된 커피머신의 제2 실시형태를 도시한 구성도이다. 도 3에 도시된 커피머신은 탱크(10), 펌프(20), 냉수라인(L1), 히터(32)가 구비되는 히팅컨테이너(30), 온수라인(L2), 커피추출구(42)가 구비됨과 아울러 커피캡슐(44)이 내장되는 캡슐홀더(40), 커피잔받침대(50), 로드셀(60), 제어모듈(70), 온수분기라인(L3), 온수제어밸브(V1), 냉수분기라인(L4) 및 냉수제어밸브(V2)로 이루어질 수 있다.Figure 3 is a block diagram showing a second embodiment of a coffee machine equipped with a load cell according to the present invention. The coffee machine shown in FIG. 3 includes a tank 10, a pump 20, a cold water line L1, a heating container 30 equipped with a heater 32, a hot water line L2, and a coffee extraction port 42. In addition, the capsule holder 40, the coffee cup holder 50, the load cell 60, the control module 70, the hot water branch line (L3), the hot water control valve (V1), cold water It may be composed of a branch line (L4) and cold water control valve (V2).

위의 구성 중 서로 다른 종류의 커피를 제조하기 위해 설치되는 온수분기라인(L3), 온수제어밸브(V1), 냉수분기라인(L4), 냉수제어밸브(V2) 및 제어모듈(70)을 제외한 다른 구성은 도 2를 통해 설명한 로드셀이 구비된 커피머신과 그 내용이 동일하므로 자세한 설명은 생략하기로 한다.
Except the hot water branch line (L3), hot water control valve (V1), cold water branch line (L4), cold water control valve (V2) and the control module 70 is installed to manufacture different types of coffee among the above configuration The other configuration is the same as the coffee machine equipped with a load cell described with reference to Figure 2, so the detailed description will be omitted.

온수분기라인(L3)은 기 제조된 커피에 온수를 혼합하여 다른 종류의 커피를 제조하기 위하여 설치된 것이다. 예컨대, 기 제조된 에스프레소 커피에 온수분기라인(L3)을 통해 온수를 혼합하면 아메리카노 커피를 제조할 수 있다. 이러한 온수분기라인(L3)은 온수라인(L2) 상에 분기 설치되며, 그 선단은 커피잔받침대(50)의 상부에 위치한다. The hot water branch line (L3) is installed to prepare a different type of coffee by mixing hot water in the pre-made coffee. For example, by mixing hot water through the hot water branch line (L3) to the prepared espresso coffee can be produced Americano coffee. The hot water branch line (L3) is branched on the hot water line (L2), the tip is located above the coffee cup support (50).

그리고 온수라인(L2)의 분기영역에는 온수의 흐름방향을 온수라인(L2) 또는 온수분기라인(L3)으로 선택 제어하기 위한 온수제어밸브(V1)가 설치된다. 이러한 온수제어밸브(V1)로는 솔레노이드 밸브가 사용되는 것이 바람직하다.And a hot water control valve (V1) for selectively controlling the flow direction of the hot water to the hot water line (L2) or hot water branch line (L3) is installed in the branching region of the hot water line (L2). As the hot water control valve (V1), it is preferable that a solenoid valve is used.

냉수분기라인(L4)은 기 제조된 커피에 냉수를 혼합하여 다른 종류의 커피를 제조하기 위하여 설치된 것이다. 예컨대, 기 제조된 에스프레소 커피에 냉수분기라인(L4)을 통해 냉수를 혼합하여 기호에 따라 얼음을 추가하면 아이스 아메리카노 커피를 제조할 수 있다. 냉수분기라인(L4)은 냉수라인(L1) 상에 분기 설치되며, 그 선단은 커피잔받침대(50)의 상부에 위치한다.Cold water branch line (L4) is installed to prepare a different type of coffee by mixing cold water in the pre-made coffee. For example, iced Americano coffee can be prepared by mixing cold water with pre-made espresso coffee through a cold water branch line (L4) to add ice according to preference. Cold water branch line (L4) is branched on the cold water line (L1), the tip is located above the coffee cup support (50).

그리고 냉수라인(L1)의 분기영역 또는 냉수분기라인(L4) 상에는 냉수의 흐름방향을 냉수분기라인(L4)으로 선택 제어하기 위한 냉수제어밸브(V2)가 설치된다. 이러한 냉수제어밸브(V2)가 냉수라인(L1)의 분기영역에 설치될 경우에는 솔레노이드 밸브가 사용된다.
A cold water control valve V2 is installed on the branched region of the cold water line L1 or the cold water branch line L4 to selectively control the flow direction of the cold water into the cold water branch line L4. The solenoid valve is used when the cold water control valve V2 is installed in the branching region of the cold water line L1.

제어모듈(70)은 펌프(20), 히팅컨테이너(30), 로드셀(60), 온수제어밸브(V1) 및 냉수제어밸브(V2) 등의 작동을 제어하는 역할을 한다.The control module 70 controls the operation of the pump 20, the heating container 30, the load cell 60, the hot water control valve V1, and the cold water control valve V2.

이러한 제어모듈(70)에는 여러 종류의 커피를 선택적으로 제조하기 위한 제1, 2 버튼(71, 72)이 구비되며, 또한 온수분기라인(L3) 및 냉수분기라인(L4)을 통해 온수와 냉수를 각각 커피잔(C)으로 추가 공급하기 위한 제3, 4 버튼(73, 74)이 구비된다.  The control module 70 is provided with first and second buttons 71 and 72 for selectively preparing several types of coffee, and also hot and cold water through the hot water branch line L3 and the cold water branch line L4. Third and fourth buttons 73 and 74 for further supplying the coffee cups C are provided.

특히 제3, 4 버튼(73, 74)은 사용자 선택버튼으로서, 제조된 커피에 사용자의 취향에 따라 온수나 냉수를 추가적으로 공급하기 위한 것이다.
In particular, the third and fourth buttons 73 and 74 are user selection buttons. The third and fourth buttons 73 and 74 are additionally supplied with hot or cold water according to the taste of the user.

이상에서 설명한 로드셀이 구비된 커피머신을 이용하여 여러 종류의 커피가 제조되는 과정을 간단히 살펴보면 다음과 같다.Looking at the process of producing a variety of coffee using a coffee machine equipped with a load cell described above are as follows.

(1) 에스프레소 커피(1) espresso coffee

제1 버튼(71)의 짧은 누름동작에 의해 커피잔받침대(50)에 놓인 커피잔(C)의 무게가 영점으로 조정되고, 온수제어밸브(V1) 및 냉수제어밸브(V2)의 동작에 의해 냉수라인(L1)과 온수라인(L2)이 개방됨과 아울러 펌프(10) 및 히팅컨테이너(30)의 동작에 의해 냉수라인(L1)을 통해 공급되던 냉수가 온수라인(L2)에서 온수로 변환되어 캡슐홀더(40)에 내장되어 있는 커피캡슐(44)을 통과하면서 에스프레소 커피가 추출된다.The weight of the coffee cup C placed on the coffee cup support 50 is adjusted to zero by a short pressing operation of the first button 71, and by the operation of the hot water control valve V1 and the cold water control valve V2. Cold water line (L1) and hot water line (L2) is opened and the cold water supplied through the cold water line (L1) by the operation of the pump 10 and the heating container 30 is converted into hot water in the hot water line (L2) Espresso coffee is extracted while passing through the coffee capsule 44 embedded in the capsule holder 40.

이때, 온수분기라인(L3)과 냉수분기라인(L4)은 온수제어밸브(V1) 및 냉수제어밸브(V2)에 의해 유로가 차단되고, 제어모듈(70)은 커피의 양에 따른 전기적 신호가 로드셀(60)에서 검출되면 펌프(20)의 구동을 정지시켜 커피의 추출동작을 종료시킨다.At this time, the hot water branch line (L3) and the cold water branch line (L4) is blocked by the hot water control valve (V1) and the cold water control valve (V2), the control module 70 is an electrical signal according to the amount of coffee When detected by the load cell 60, the driving of the pump 20 is stopped to end the coffee extraction operation.

(2) 도피오 커피(2) doppio coffee

제1 버튼(71)의 긴 누름동작에 의해 도피오 커피를 제조할 수 있다. 이러한 도피오 커피의 제조과정은 에스프레소 커피와 동일하며, 다만 추출되는 커피의 양이 에스프레소의 2배로 설정된다는 점에서 차이가 있다. A long press operation of the first button 71 can produce doppio coffee. The manufacturing process of such dopio coffee is the same as the espresso coffee, except that the amount of coffee to be extracted is set to twice the espresso.

(3) 아메리카노 커피(3) Americano Coffee

제2 버튼(72)의 짧은 누름동작에 의해 아메리카노 커피를 제조할 수 있으며, 이러한 아메리카노 커피는 에스프레소 커피의 제조과정이 완료된 후 온수분기라인(L3)을 통해 온수를 추가적으로 공급함으로써 제조된다.The American coffee can be manufactured by a short pressing operation of the second button 72, and the American coffee is produced by additionally supplying hot water through the hot water branch line L3 after the process of preparing the espresso coffee is completed.

이때, 제어모듈(70)은 온수의 양에 따른 전기적 신호가 로드셀(60)에서 검출되면 온수제어밸브(V1)를 제어하여 온수분기라인(L3)을 통한 온수의 배출동작을 종료시킨다.At this time, the control module 70 when the electrical signal according to the amount of hot water is detected in the load cell 60 to control the hot water control valve (V1) to terminate the discharge operation of hot water through the hot water branch line (L3).

(4) 아이스 아메리카노 커피(4) Iced Americano Coffee

제2 버튼(72)의 긴 누름동작에 의해 아이스 아메리카노 커피를 제조할 수 있으며, 이러한 아이스 아메리카노 커피는 에스프레소 커피의 제조과정이 완료된 후 냉수분기라인(L4)을 통해 냉수를 추가적으로 공급함으로써 제조된다.The ice americano coffee can be manufactured by a long pressing operation of the second button 72. The ice americano coffee is manufactured by additionally supplying cold water through the cold water branch line L4 after the manufacturing process of the espresso coffee is completed.

이때, 제어모듈(70)은 커피의 양에 따른 전기적 신호가 로드셀(60)에서 검출되면 냉수제어밸브(V2)를 제어하여 냉수분기라인(L4)을 통한 냉수의 배출동작을 종료시킨다.
At this time, the control module 70 when the electrical signal according to the amount of coffee is detected in the load cell 60 to control the cold water control valve (V2) to terminate the discharge operation of the cold water through the cold water branch line (L4).

10: 탱크 20: 펌프
30: 히팅컨테이너 40: 캡슐홀더
42: 커피추출구 50: 커피잔받침대
60: 로드셀 70: 제어모듈
71: 제1 버튼 72: 제2 버튼
73: 제3 버튼 74: 제4 버튼
L1: 냉수라인 L2: 온수라인
L3: 온수분기라인 L4: 냉수분기라인
V1: 온수제어밸브 V2: 냉수제어밸브10: tank 20: pump
30: heating container 40: capsule holder
42: coffee spout 50: coffee cup support
60: load cell 70: control module
71: first button 72: second button
73: third button 74: fourth button
L1: cold water line L2: hot water line
L3: Hot Water Branch Line L4: Cold Water Branch Line
V1: Hot Water Control Valve V2: Cold Water Control Valve

Claims (6)

탱크(10);
상기 탱크(10)와 연결되는 펌프(20);
상기 펌프(20)와 연결되는 냉수라인(L1);
상기 냉수라인(L1)과 연결되어, 상기 냉수라인(L1)을 통해 공급되는 냉수를 가열하는 히팅컨테이너(30);
상기 히팅컨테이너(30)와 연결되는 온수라인(L2);
상기 온수라인(L2)과 연결되며, 커피추출구(42)가 구비되어 있는 캡슐홀더(40);
상기 커피추출구(42)의 하부에 설치되는 커피잔받침대(50);
상기 커피잔받침대(50)의 하부에 설치되는 로드셀(60) 및
상기 로드셀(60)에서 출력되는 전기적 신호에 따라 상기 커피추출구(42)를 통해 추출되는 커피의 양을 제어하는 제어모듈(70);
상기 온수라인(L2) 상에 분기 설치되며, 선단이 상기 커피잔받침대(50)의 상부에 위치하는 온수분기라인(L3) 및
상기 온수라인(L2)의 분기영역에 설치되어, 온수의 흐름방향을 제어하는 온수제어밸브(V1)를 포함하는 것을 특징으로 하는 로드셀이 구비된 커피머신.
Tank 10;
A pump 20 connected with the tank 10;
A cold water line (L1) connected to the pump 20;
A heating container (30) connected to the cold water line (L1) to heat cold water supplied through the cold water line (L1);
A hot water line (L2) connected to the heating container (30);
A capsule holder 40 connected to the hot water line L2 and having a coffee extracting port 42;
A coffee cup supporter 50 installed below the coffee extraction port 42;
A load cell 60 installed below the coffee cup support 50;
A control module 70 for controlling the amount of coffee extracted through the coffee extraction port 42 according to the electrical signal output from the load cell 60;
It is installed on a branch on the hot water line (L2), the hot water branch line (L3) and the tip is located above the coffee cup support (50) and
Coffee machine provided with a load cell, characterized in that installed in the branching area of the hot water line (L2), comprising a hot water control valve (V1) for controlling the flow direction of hot water.
삭제delete 청구항 1에 있어서,
상기 냉수라인(L1) 상에 분기 설치되며, 선단이 상기 커피잔받침대(50)의 상부에 위치하는 냉수분기라인(L4) 및
상기 냉수라인(L1)의 분기영역 또는 상기 냉수분기라인(L4) 상에 설치되어, 냉수의 흐름방향을 제어하는 냉수제어밸브(V2)를 포함하는 것을 특징으로 하는 로드셀이 구비된 커피머신.
The method according to claim 1,
Branched on the cold water line (L1), the cold water branch line (L4) and the tip is located above the coffee cup support (50) and
A coffee machine provided with a load cell, characterized in that it is provided on the branch region of the cold water line (L1) or the cold water branch line (L4), the cold water control valve (V2) for controlling the flow direction of cold water.
청구항 3에 있어서,
상기 제어모듈(70)에는 커피를 추출하기 위한 제1, 2 버튼(71, 72) 및
상기 온수분기라인(L3) 및 상기 냉수분기라인(L4)을 통해 온수와 냉수를 각각 추가적으로 공급하기 위한 제3, 4 버튼(73, 74)이 구비되는 것을 특징으로 하는 로드셀이 구비된 커피머신.
The method according to claim 3,
The control module 70 has first and second buttons 71 and 72 for extracting coffee and
Coffee machine equipped with a load cell, characterized in that the third, fourth buttons (73, 74) for additionally supplying hot water and cold water through the hot water branch line (L3) and the cold water branch line (L4), respectively.
청구항 1에 있어서,
상기 로드셀(60)은 상기 커피잔받침대(50)의 하부에 일체로 결합되는 것을 특징으로 하는 로드셀이 구비된 커피머신.
The method according to claim 1,
The load cell 60 is provided with a load cell, characterized in that integrally coupled to the lower portion of the coffee cup support (50).
청구항 1에 있어서,
상기 로드셀(60)은 상기 커피잔받침대(50)의 하부에 일체로 형성되는 것을 특징으로 하는 로드셀이 구비된 커피머신.
The method according to claim 1,
The load cell 60 is a coffee machine provided with a load cell, characterized in that formed integrally with the bottom of the coffee cup support (50).
KR1020120039372A 2012-04-16 2012-04-16 Coffee machine with load cell KR101194980B1 (en)

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PCT/KR2013/002364 WO2013157751A1 (en) 2012-04-16 2013-03-21 Coffee machine
CN201380019513.0A CN104768434A (en) 2012-04-16 2013-03-21 Coffee machine
US14/388,124 US20150059585A1 (en) 2012-04-16 2013-03-21 Coffee machine
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